US4778381A - Reciprocating grate drive apparatus - Google Patents

Reciprocating grate drive apparatus Download PDF

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Publication number
US4778381A
US4778381A US07/086,050 US8605087A US4778381A US 4778381 A US4778381 A US 4778381A US 8605087 A US8605087 A US 8605087A US 4778381 A US4778381 A US 4778381A
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US
United States
Prior art keywords
gear units
relatively low
shaft
frame
input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US07/086,050
Other languages
English (en)
Inventor
Otto Heinemann
Heinz-Herbert Schmits
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Krupp Polysius AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krupp Polysius AG filed Critical Krupp Polysius AG
Assigned to KRUPP POLYSIUS AG reassignment KRUPP POLYSIUS AG ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HEINEMANN, OTTO, SCHMITS, HEINZ-HERBERT
Application granted granted Critical
Publication of US4778381A publication Critical patent/US4778381A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0206—Cooling with means to convey the charge
    • F27D15/0213—Cooling with means to convey the charge comprising a cooling grate
    • F27D15/022—Cooling with means to convey the charge comprising a cooling grate grate plates

Definitions

  • variable-speed electric motor acts via a gear and a chain drive to rotate a heavy eccentric shaft from which two connecting rods move the grate axis of the thrust grate to and fro.
  • the object of this invention is to construct apparatus of this type in such a way that the expenditure on construction and manufacture is substantially reduced.
  • the division of force is provided on the low-moment input side between an electric motor and reduction drives.
  • heavy and expensive eccentric shaft which was previously necessary for the division of force on the high-moment output side can be omitted.
  • FIG. 1 is a fragmentary, diagrammatic plan view of one embodiment of drive apparatus according to the invention.
  • FIG. 2 is a view similar to FIG. 1, but illustrating a modified embodiment
  • FIG. 3 is a view similar to FIG. 1, but illustrating a further modified embodiment.
  • the apparatus illustrated in FIG. 1 for driving a thrust grate cooler contains a variable-speed electric motor 1, preferably a three-phase standard motor with a frequency converter 2 and a separate ventilator 3.
  • the reduction gear system is formed by two standard gear units 4, 5 which are coupled to each other on the input side via a transmitting shaft 6, enclosed in a protective pipe 7, and elastic couplings 8, 9, e.g. diaphragm couplings, which are resistant to torsion.
  • Crankshafts 10 and 11 are inserted into the bushes on the output side of each of the two gear units.
  • the shafts 10, 11 drive push rods 12, and 13 which are coupled to a drive shaft 14 which is firmly clamped in a swing frame 15.
  • the swing frame 15 is guided by means of guide rollers 16, 17 relative to the cooler housing 18.
  • the distribution of force is provided on the low-moment side between the electric motor 1 and the reduction gear system formed by the gear units 4 and 5.
  • one half of the coupling 9 is fixed on the shaft 6 by means of a shrink-fit disc.
  • the shaft 6 is advantageously divided.
  • FIG. 2 shows a construction in which the shaft 6' is divided once, and the two adjacent shaft parts 6'a and 6'b are connected to one another by a coupling 19 which is resistant to rotation.
  • a bearing 20 is generally necessary for the shaft 6'.
  • the protective pipe 7' is constructed in such a way that it forms a protective box for both the coupling 19 and the bearing 20.
  • the shaft 6" is divided at two points.
  • the three-part connecting shaft therefore consists of the shaft adjacent parts 6"a, 6"b and 6"c which are connected to one another torsion resistant via couplings 21, 22.
  • Two bearings 23, 24 serve for mounting of the shaft 6".
  • the protective pipe 7" forms protective boxes for the couplings 21, 22 and the bearings 23, 24.
  • the push rods 12, 13 can be of one-part or multi-part construction in all the embodiments. In the case of two-part construction, the head bearings can be ready mounted on the crankpins of the shafts 10, 11 in the factory.
  • the gear units 4 and 5 are preferably constructed as multi-stage spur gears and provided with torque supports 25, 26.
  • a further coupling 27 is provided between the electric motor 1 and the shaft 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gear Transmission (AREA)
  • Incineration Of Waste (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
US07/086,050 1986-09-19 1987-08-17 Reciprocating grate drive apparatus Expired - Fee Related US4778381A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3631974 1986-09-19
DE19863631974 DE3631974A1 (de) 1986-09-19 1986-09-19 Vorrichtung zum antrieb eines schubrostkuehlers

Publications (1)

Publication Number Publication Date
US4778381A true US4778381A (en) 1988-10-18

Family

ID=6309967

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/086,050 Expired - Fee Related US4778381A (en) 1986-09-19 1987-08-17 Reciprocating grate drive apparatus

Country Status (3)

Country Link
US (1) US4778381A (fr)
EP (1) EP0260432A3 (fr)
DE (1) DE3631974A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5330350A (en) * 1991-07-09 1994-07-19 Krupp Polysius Ag Reciprocating grate cooler
US5549471A (en) * 1994-04-14 1996-08-27 Krupp Polysius Ag Cooler grate for a reciprocating grate cooler
CN100427868C (zh) * 2006-02-28 2008-10-22 中冶长天国际工程有限责任公司 烧结矿冷却环冷机的销齿驱动装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK3128275T3 (en) * 2015-08-07 2018-05-28 Alite Gmbh Cement clinker cooling grate

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2084976A (en) * 1933-08-30 1937-06-22 Allis Chalmers Mfg Co Speed controller for clinker coolers
US3358385A (en) * 1965-04-12 1967-12-19 Fuller Co Reciprocating grate conveyor with side wall damage preventing means
US4147503A (en) * 1976-10-09 1979-04-03 Klockner-Humboldt-Deutz Ag Grid cooler, particularly feed step grid cooler
US4503783A (en) * 1983-07-11 1985-03-12 General Kinematics Corporation Furnace ash air seal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197887A (en) * 1962-07-27 1965-08-03 Fuller Co Cement clinker cooler comprising roller-bearing supported vibrating grates
DE2930406A1 (de) * 1979-07-26 1981-02-12 Krupp Polysius Ag Schubrost

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2084976A (en) * 1933-08-30 1937-06-22 Allis Chalmers Mfg Co Speed controller for clinker coolers
US3358385A (en) * 1965-04-12 1967-12-19 Fuller Co Reciprocating grate conveyor with side wall damage preventing means
US4147503A (en) * 1976-10-09 1979-04-03 Klockner-Humboldt-Deutz Ag Grid cooler, particularly feed step grid cooler
US4503783A (en) * 1983-07-11 1985-03-12 General Kinematics Corporation Furnace ash air seal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5330350A (en) * 1991-07-09 1994-07-19 Krupp Polysius Ag Reciprocating grate cooler
US5549471A (en) * 1994-04-14 1996-08-27 Krupp Polysius Ag Cooler grate for a reciprocating grate cooler
CN100427868C (zh) * 2006-02-28 2008-10-22 中冶长天国际工程有限责任公司 烧结矿冷却环冷机的销齿驱动装置

Also Published As

Publication number Publication date
EP0260432A3 (fr) 1990-02-07
EP0260432A2 (fr) 1988-03-23
DE3631974A1 (de) 1988-03-31

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Legal Events

Date Code Title Description
AS Assignment

Owner name: KRUPP POLYSIUS AG, GRAF-GALEN-STR. 17, 4720 BECKUM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:HEINEMANN, OTTO;SCHMITS, HEINZ-HERBERT;REEL/FRAME:004762/0846

Effective date: 19870901

Owner name: KRUPP POLYSIUS AG,GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HEINEMANN, OTTO;SCHMITS, HEINZ-HERBERT;REEL/FRAME:004762/0846

Effective date: 19870901

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Effective date: 19921018

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362